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公开(公告)号:US3672421A
公开(公告)日:1972-06-27
申请号:US3672421D
申请日:1970-05-15
申请人: RESEARCH INC
发明人: ANDERSON JAMES R
IPC分类号: B60C11/16
CPC分类号: B60C11/1612 , Y10T152/10279
摘要: A tire, particularly for operation in icy conditions which has studs that are mounted so they can be retracted or extended pneumatically without changing the external configuration or shape of the tire, and can be extended without utilizing any external pressure sources.
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公开(公告)号:US3329804A
公开(公告)日:1967-07-04
申请号:US29680863
申请日:1963-07-22
申请人: RESEARCH INC
发明人: ANDERSON JAMES R , WILDE HERBERT J
IPC分类号: G06K11/00
CPC分类号: G06K11/00
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公开(公告)号:US3060332A
公开(公告)日:1962-10-23
申请号:US81216359
申请日:1959-05-11
申请人: RESEARCH INC
IPC分类号: G05B19/12
CPC分类号: G05B19/122 , G05B2219/23202 , G05B2219/23421
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公开(公告)号:US2941135A
公开(公告)日:1960-06-14
申请号:US79340059
申请日:1959-02-16
申请人: RESEARCH INC
发明人: ANDERSON JAMES R
IPC分类号: G05B19/12
CPC分类号: G05B19/122 , Y10T409/30084
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